Effect of differential parity through five generations on the incidence of tumors in C3Hf mice.
D000367:Age Factors; D000818:Animals; D001947:Breeding; D005260:Female; D008325:Mammary Neoplasms, Experimental / Q000453:epidemiology / Q000235:genetics* / Q000473:pathology; D051379:Mice; D008854:Microscopy, Electron; D010298:Parity; D011247:Pregnancy